Kalyanee Mam 2018, Bossou Guinea

CHIMPANZEES

There are two species of chimpanzees: Bonobos (Pan paniscus) and Common Chimpanzees (Pan troglodytes). Please click here for more information on bonobos.

 

Common chimpanzees live in tropical Africa, ranging from southern Senegal and Mali, across the forests of Central Africa north of the Congo River to western Tanzania and Uganda. They live in patriarchal societies where males generally remain in the group and females transfer to other communities at sexual maturity. They live in groups that vary greatly in size but can be up to 150 individuals. These groups may break up into smaller groups and come back together – something called a fission-fusion society. Their range sizes vary greatly as well, depending on food and water availability, and group size among other factors. Adult chimpanzees make nests in trees every night to sleep in. Adult males will defend their territory from other communities of chimpanzees. Chimpanzees use tools, such a fishing rods to fish for algae, stone tools to crack open nuts, as well as leaves for drinking water. They form social bonds that last a lifetime. There are four subspecies of chimpanzees.

Central Chimpanzees

Scientific name

IUCN Red List Status

Countries

Estimated Number

Pan troglodytes troglodytes

Endangered

Angola, Cameroon,
Central African Republic,
Democratic Republic of Congo,
Equatorial Guinea, Gabon,
Republic of Congo

128,760 (114,208-317,039)

Western Chimpanzees

Scientific name

IUCN Red List Status

Countries

Estimated Number

Pan troglodytes verus

Critically Endangered

Côte d'Ivoire, Ghana, Guinea, Guinea-Bissau,
Liberia, Mali, Senegal, Sierra Leone
(possibly extinct in Benin and Burkina Faso; extinct in Togo)

18,000-65,000

Eastern Chimpanzee

Scientific name

IUCN Red List Status

Countries

Estimated Number

Pan troglodytes schweinfurthii

Endangered

Burundi, Central African Republic,
Democratic Republic of Congo,
Rwanda, South Sudan, Tanzania,
Uganda

181,000-256,000

Nigeria-Cameroon Chimpanzee

Scientific name

IUCN Red List Status

Countries

Estimated Number

Pan troglodytes ellioti

Endangered

Nigeria, Cameroon

4,400-9,345

© 2020 IUCN SSC PSG SGA ARRC Task Force